RLUSDvsUSDD
Ripple USD vs USDD — side-by-side comparison of supply, chains, backing, and peg data.
Side-by-side
RLUSD — Ripple USD
USDD — USDD
30-day peg stability dotted line = target · both charts share one scale
What the last 30 days show
Over the last 30 days RLUSD supply moved +2.2% and USDD +7.9% — USDD grew faster. RLUSD held the tighter band: worst deviation 2 bps against 29 bps.
Key differences
- RLUSD and USDD are similar in size — within 10% of each other by USD-equivalent value.
- RLUSD ranks #12 while USDD ranks #13 among all tracked stablecoins.
- Both are pegged to the same currency (USD), so they compete directly for the same use cases.
- RLUSD is a fiat-backed stablecoin; USDD is crypto-backed. Different mechanism, different failure modes.
- Reserves differ — RLUSD holds cash & deposits (ripple), USDD holds algo + trx collateral.
- USDD is deployed on 4 chains — much broader coverage than RLUSD's 2.
- Primary chain differs — most RLUSD supply lives on XRPL, while most USDD supply is on Tron.
Full comparison table
| Metric | RLUSD | USDD |
|---|---|---|
| USD circulation value | $1.58B | $1.51B |
| Rank (by USD value) | #12 | #13 |
| Peg | USD | USD |
| Mechanism | fiat-backed | crypto-backed |
| Backing | Cash & deposits (Ripple) | Algo + TRX collateral |
| Chains deployed | 2 | 4 |
| Primary chain | XRPL | Tron |
| Issuer | Ripple | TRON DAO Reserve |
| CoinGecko | View → | View → |
Frequently Asked Questions
What's the main difference between RLUSD and USDD?
Both track USD, so they compete for the same use cases. RLUSD holds cash & deposits (ripple); USDD holds algo + trx collateral. RLUSD ranks #12 by USD value and USDD ranks #13.
Which is bigger, RLUSD or USDD?
RLUSD is larger, with $1.58B in circulation vs $1.51B for USDD. That's roughly 1.1× the size.
Is RLUSD safer than USDD?
Neither is inherently safer. Safety turns on reserve composition, issuer transparency, redemption rights and regulatory oversight — none of which this page audits. RLUSD uses a fiat-backed model; USDD uses a crypto-backed one. Read each issuer's most recent reserve attestation before choosing.
Can I convert between RLUSD and USDD?
Yes. RLUSD and USDD both trade on major centralized and decentralized exchanges. Since both track USD, the exchange rate is typically very close to 1:1. Direct swap protocols on Ethereum, Solana, and other chains offer the tightest spreads.
Should I choose RLUSD or USDD?
The right choice depends on your use case. Consider: which chain do you need? RLUSD is available on 2 chains and USDD on 4. What backing do you prefer? What's your integration surface (exchanges, DeFi protocols, payment providers)? Both have deep liquidity, so market cap alone shouldn't decide it.